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Sonnax transfercase pump plate kit

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Old 12-13-2011, 09:45 AM
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Charlie Murphy!
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Default Sonnax transfercase pump plate kit

I'm planning on swapping in a NP149 transfercase. I figured while it was sill out I should upgrade the oil slinger. I don't know much about this, but have head that it can eventually wear through the housing causing an oil leak.

I searched around and found several threads where folks had upgraded to Chevy's newer version.

Then I found this:

Sonnax transfer case pump plate 100246-02K

NP246 NP261 NP263 TRANSFER CASE PUMP PLATE KIT SONNAX | eBay

The only place I can find it for sale online is eBay. Since that's the only place, I'm wondering if it's a good price or not.

Is the Sonnax upgrade worth it? Or should I stick to GM parts?

Does anyone know of a place online where I can order up the part?
Old 12-13-2011, 10:01 AM
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I have a gauge for that
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I always install one of these when I take a tcase apart, does the same thing

OIL PUMP SAVER PLATE TRANSFER CASE NP246 NP261 NP263 | eBay
Old 12-13-2011, 10:06 AM
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Charlie Murphy!
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Okay thanks.

I thought the deal with the Sonnax is that it relocates the wear pattern and elimated the metal on metal rub through issue.

I found this:

Last edited by iregret; 12-13-2011 at 10:15 AM.
Old 12-13-2011, 10:26 AM
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I have a gauge for that
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GM designed a new clip to address this specific issue, but im not sure how much it costs. The metal ring I posted prevents the pump from rubbing on the case. Im sure the sonnax part works fine, but if something 1/3 the cost works just as well...
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